central heating | Page 8

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central heating

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  1. M

    Central heating cleaner

    Can leaving cleaner in for too long before a boiler swap cause issues? The ideal boilers cleanser says leave in for between 1 hour and a week. Would leaving in for a couple of weeks really cause issues?
  2. H

    My central heating sounds like it is on when it isn’t

    I have a conventional heating system. Had boiler replaced last August and since then my heating has made a humming noise - even when it is off. Had British Gas come go look at it but couldn’t hear it. I asked if it may be something to do with tanks in loft, but he said no and wouldn’t even go...
  3. P

    Central heating pipework

    Just moved in, and lifted the floor to repair a damaged radiator pipe. The system was originally a gravity fed/ immersion tank as the pipework goes to that corner of the room an back again. There is an extra pipe which goes between the flow and return side of the pipework. The boiler is...
  4. R

    air source heat pump central heating

    Hi I have had a brand new and very expensive air source heat pump installed together with radiators etc (had storage heaters before). The water tank is in the airing cupboard on the first floor. I am hoping someone on this forum has experience with these systems. I have two questions. How long...
  5. G

    Central Heating pipe vibrating when boiler stops

    Hello, Wonder if anyone can point me in the right direction, one of my central heating pipes (think its the length from the boiler to the first radiator) is vibrating when the boiler switches off. I recently had new radiators fitted and the vibration stopped for about a month but seems to be...
    • Glindsay23
    • Thread
    • boiler central central heating heating pipe
    • Replies: 7
    • Forum: Boilers
  6. T

    Central heating switches on when i turn the hot water on

    I have a Horstmann 425 Tiara with which can be programmed twice a day. When i set the hot water to come on but with the central heating turned off the cental heating still comes on at the time the hot water comes on Is there a way of overriding this or is it
  7. M

    Setting central heating flow temperature

    What temperature is best to set the flow too on a central heating boiler? Setting it at a slightly lower value can make the boiler condense more?
  8. L

    Hello Lads, got a central heating problem

    Got a 10 year old heating system and one rad needs venting every month or so. The primary F & R come straight to the cylinder which is fairly central in the house. (house is a bungalow). 28mm x 15mm manifold system feeds rads radiating from cylinder. The rad is not last in the run. It is an open...
  9. B

    Central heating issue.

    For some weeks now my central heating has been switching off after about ten hours and not refiring. The next morning the heating switches back on a timer and the same issue occurs after a number of hours. Occasionally the blue power light has flashed but on resetting, the boiler fires up and...
  10. C

    Cannot turn off Central heating

    Hi, I have a Worcester greenstar Ri on a Y plan system with hot water cylinder. Problem I'm having is heating won't switch off once on, it ignores the room stat and programme and stays on. I've tried; new 3port motorised valve, new programmer/timer and also new room stat. I've also disconnected...
  11. J

    Central heating not working

    Hello My boiler seems to work fine as I get hot water no problem. The problem is that my central heating isn't coming on. I have a Drayton SM1 control. The switch doesn’t work and the light won’t come on. It still makes the clock sound but the heating won’t come on with the timer either. I...
  12. J

    Cast Iron central heating in a church, should we upgrade?

    Hi All, I'm after a bit of advice about our church heating. We have a cast iron central heating system in the main church building that has recently suffered a leak where it joins onto the newer (circa 10 years old) boiler feed steel pipework. Finding a contractor who wants to work with cast...
  13. CorgiDirect

    reliable, quality assured and cost effective central heating power flushing solutions

    Norstrom Proflush have produced Central Heating Power Flushing Equipment for over 25 Years. At CORGI direct, we provide a range of reliable, quality assured and cost effective central heating power flushing solutions. VIEW FULL RANGE
  14. B

    Oil Central Heating but no hot water

    Hi, I have a two storey house with an oil boiler zoned heating system and two motorised valves. There is a horstmann H37XL control unit that has three buttons, one for downstairs and one for upstairs and one for hot water. My first simple query is whether you should get hot water only when you...
    • barrymurphy
    • Thread
    • central central heating heating hot water water
    • Replies: 13
    • Forum: Boilers
  15. M

    Best Multimeter for testing Central Heating and Boilers?

    Do I really need to spend £150 on a fluke for general fault finding?
    • macka09
    • Thread
    • boilers central central heating heating
    • Replies: 42
    • Forum: Boilers
  16. M

    Central Heating Woes!

    Hello All I've been having fun with my old vented, Y-Plan central heating system, since I finally got it up and running again yesterday, having had the system out of service since around March. The system was in a bad way, with rusty radiators, a noisy pump, and generally poor performance...
  17. S

    Corrosion problem in central heating system with standard plastic piping?

    Five years ago I had a new central heating system installed. The pipework for two of the radiators was done in plastic, running under the floorboards. Although the system was dosed with plenty of Sentinel X100 inhibitor, after about 18 months the water suddenly started to go brown, and I had to...
  18. Reddwarf4ever

    Central heating pump sizing

    Hi I have a valiant plus ecotec 418, ( about 8-9 years old ) it has always had the same problem, continually going from S.5.3 to S5.4 and back again....when ever I check, the Delta T while running normally is around 20oC and I am told S.5.3 doesn’t occur until the DT is 30oC. The boiler fires up...
  19. D

    Gas central heating with warm airflow

    Hi, I am not sure what i am trade I am looking butt here is my question. I am in the process of buying a house and the homebuyers survey said there might be possible asbestos in the ventilation pipes. The house was built in 1980.Who tests this ? I contacted an asbestos company and they said it...
  20. L

    New Build House - Central Heating Issue

    I have just moved into a new-build house and can't for the life of me get all the radiators to come on at once. There doesn't seem to be any issues with the downstairs radiators but on the 2nd floor it's random, some days one radiator comes on, another day it will be a different radiator. Then...
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